Spindle-carrier.



D. L. MILLER.

SPINDLE CARRIER.

APPLICATION FILED NOV.27. 1915.

Patented May 23, 1916.

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SPINDLE CARRIER. APPLICATION yHu Nov. 27. 1.915.

Patented May 23,1916.

2 SHEETS-SHEET 2.

DAVID L. MILLER, 0F BRADDOGK, PENNSYLVANIA.

SPINDLE-CARRIER.

Specification of Letters Patent.

Patented May 23, 1916.

Application led November 27, 1915. Serial N o. 63,863.

To all 'whom t may concern Be it known that I, DAVID L. MinLER, a citizen of the United States, residing at Braddock, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Spindle-Carriers, of whichl the following is a specification.

My invention relates to apparatus used 1n supporting the spindles of rolling mills used to connect the pods or wabblers on the ends of the roll driving pinions with thel pods on the ends of the roll necks.

Heretofore it has been the practice to support the spindles, at the middle of their length, on carriers which in turn are secured to parallel supports extending on each side of the spindles from between the facespf the adjacent roll and pinion housings. With this apparatus the supports for the carriers are in the way and interfere with the workmen in operating the set screws and in alining the rolls, as it is frequently necessary to adjust the rolls in the operation of the rolling mills.

One object of my invention is to provide a spindle carrier of novel construction having improved means whereby the spindles are yieldingly supported in a manner whichv avoids interference with the yadjustment of the set screws and alining of the rolls.

Another object of the invention is to yprovide a spindle carrier having novel means whereby the apparatus is adjusted to take care of changes in the axis of rotation of the spindles and to take up irregularities in the rotative movement vof the spindles.

A- further object of "the invention is the provision of a spindle carrier having novel means whereby the spindles are supported in the varying angular-positions necessary in the operation of the rolling mills.1

A further object of the invention is to provide a spindle carrier having improved means whereby either spindle is readily removed and replaced without disturbance of the others.

A still further object of the invention is the provision of the novel combinations, constructions and,` arrangement j of parts shown in the drawings and covered by the appended claims, and more fully described hereinafter.

Referring now to the drawings forming Figure 1 .is a side elevation, partly insection, showing a ro11- partv of this specification,

:die 119,20 and 21.

ing mill vhaving a spindle carrier constructed and arranged in accordance with my invention. Fig. 2 is an end elevation, on a larger scale and partly in section, showing in detail theconstruction of the spindle carrier forming my invention. Fig. 3 is a side elevation of the apparatus shown in Fig. 2.

In the accompanying drawings the numeral 2 designates the housing shoes on which the roll housings 3 and 4 and pinion housings 5 and 6 are removably secured by fastening bolts 7. Secured in the roll bearings positioned within the windows of the housings 3- and 4 are the rolls 8, 9 and 10, the mill shown being a three-high roughing mills employed in rolling rails.

Mounted in the bearings within the win-v dows of the pinion housings 5 and 6 are the roll driving pinions 11, 12 and 13. The roll bearings and also the pinion bearings are secured `in adjusted position within the housings by means of the housing screws 14 in the housing caps 15, the housing shown being of the open top type, although closed top housings maybe used when desired.

Each neck of the rolls 8, 9 and 10 is pro.- vided with a pod or wabbler 16 and the necks of the driving pinions each have a similar pod 17 thereon. The pods 16 on one end of the rolls 8,9 and 10, and the pods 17 on the adjacentv end of the pinions 11, 12 and 13, are connected by means of the coupling boxes 18 With the driving spindles 19, 2O and 21, each roll being connected by a spindle to a driving pinion.

The pod on the outer -end of the middle driving pinion 12 is connected by means of a coupling box 22 to the leading spindle 23, and this leading spindle is connected at one end to a coupling 011 the driving shaft of an engine or other prime mover. The engine shaft and engine not forming part of this invention are not shown nor further dee The vertical leg of the L-shaped1 stand 24,

v which is hollow, is provided on opposite sides with a series of registering transverse open- .ings 26 and extending through these openings Y are pivot arms 27, 28 and 29, one for each spin- The projecting ends of otherwise secured to the housingthese arms are each provided with a spindle bearing 30 which ismade removable for convenience and which may be an integral part of the arm when desired. Each of the arms l 27, 28b and 29 is pivotally secured on a rock l ears 35 on the outer surface of opposite sides of the vertical leg of the Lshaped stand 24.

Nuts 36 on the threaded end of the stirrup bolts 34 provide for vertical adjustment of the stirrup bolts, and through the rock shafts 31 provide for vertical adjustment of the spindle carrier arms 27, 28 and 29.

One end of the carrier arms 27, 28 and 29 is recessed, and extending through each of the recesses 37 in the ends of the arms -is an eye-bolt 38 which is pivotally secured by means of a pin 39 between the pairs of lugs 40 onone side of the vertical leg of the L-shaped Stand. The screw threaded ends of the eye-bolts extend upwardly and a helicalspring 41 is seated in the recess 37 in the ends of each bearingl arm and surrounds its eye-bolt 38, a follower omwasher 42 being provided on each end of the spring 40 to provide a fiat bearing surface for the opposite ends of the spring 41 in the recess and for the face of the adjusting nut 43 on one end of each eye-bolt 38.

Inl erecting my improved apparatus the L-shaped 'stand 24 is fastened by the holding bolts to the housing shoe 2 at a point about midway between the adjoining faces of the roll housing 4 and pinion housing 5 of the mill. The bearing arms 27, 28 and '2.9 are then suspended from the stand by means of the rocking shaftsl 31 and stirrup bolts 34 and the recessed ends of the bearing arms are secured to the stand by means of the eye-bolts 38 and springs 41, and nuts 43,

s is clearly shown in Figs. 2 and 3.

In the meantime, the rolls 8, 9 and 10 have been positioned and adjusted within the housings 3 and 4 and the roll pinions secured in place in the pinion housings 5y and 6. The spindles 19, -20 and 21 are then placed in position between the rolls and opposite roll pinion and thefends of the spindles are connected to the pods on the necks of .the rolls and pinions by the coupling boxes 18, as is shown in Fig. l.

As the bearing ends of the arms'27, 28 and 29 are overhung on the stand 24, there are no obstructions to. prevent the ready removal and replacement of either of the spindles, and the support for any one spindle does not interfere with the handling of the others in removingand replacing the spindles.

The nuts 36 and 43 on the screw threaded ends of the stirrup bolts 34 and eye-bolts 38 are then turned to adjust the rocking. bearing arms 27, 28 and 29 so as to bring the bearings 30 on the overhanging end of these arms into supporting engagement with the spindles 19, 20 and 21, these bearings engaging with the spindles at about the middle of their length. Sufficient compression is put on the springs 41l on the Arecessed ends of the bearing arms to yieldingly support the spindles 19,20 and 21, at the desired height.

When the mill is in operation each roll 8, 9 and 10 is positively rotated through the spindles 19, 20 and 21, and coupling boxes 18 by positively driving pinions 11, 12 and 13, in the usual known manner.

As the rolls will be, adjusted from time to time toward and away from each other in the operation of the mill, the axes of the spindles will not always be exactly horizontal, but as the bearing 30 on the ends ofthe bearing arms 27, 28 and 29 is adapted to rock slightly such changes in angularity are provided for. The changes in the lines of rotation of the spindles will be compensated for by the yielding movement of the springs 41 inI the recessed ends of the bearing arms.

The advantages'of my invention will be apparent to those skilled in the art. By supporting the spindles on the overhanginlg. ends of the bearing arms on the stand, and by positioning the stand at a point midway between adjoining faces of the adjacent roll and pinion housings, the set screws and liners in the housings are unobstructed `and free access is had by the workmen to these adjusting screws and liners by which the rolls and roll bearings are secured in the desired position. The overhanging arms enable the spindles to be removed and replaced singly,'instead of requiring the removal of the support for one spindle in order to have free access to another, as is the case with existing apparatus.

The apparatus is simple and will not require frgguent or costly repairs.

Modifications in the construction and arrangement of `parts may be made without departing from my invention as defined in the appended claims.

I claim: s

1. In a rolling mill, a spindle carrierv comprising an angularly adjustable pivoted carrier arm, said arm havingonel end in supporting engagement with a-roll spindle, a

. on the end of said carrier arm for angularlyprising an adjustable pivoted carrier arm,

said arm having one end 1n supporting engagement with a roll spindle, a stand on which the carrier arm is pivoted at -an intermediate point inthe length of the arm, and yielding means connecting the carrier arm to the stand to hold said carrier arm in spindle carrying position.

4. In a rolling mill, a spindle carrier comp rising an angularly adjustable pivoted carrler a11m,4said arm having one end in supporting engagement with a roll spindle, a stand on which the carrier arm is pivotally mounted `at an intermediate point in the length ofthe arm, and yielding means adjustably connecting the end of said carrier arm to the stand to hold the carrier arm in spindle carrying position.

5. In a rolling mill, a spindle carrier comprising a pivoted carrier arm, said arm having one end in supporting engagement with a roll spindle, a pivot shaft on the arm at an intermediate point in the length of the arm, a stand, means adjustably connecting the pivot shaft to said stand and means adjusting said carrier arm.

6. In a rolling mill, a spindle carrier comprising a pivoted carrier arm, said arm hav- 1ng one end in supporting engagement with a roll spindle, a pivot shaft on the arm 'at an intermediate point in the length of the arm, a stand, meansadjustably connecting said pivot shaft to said stand, and means for fastening the arm in adjusted position on the stand.

7 In a rolling mill, a spindle carrier comprising apivoted carrier arm, said arm having one end inv supporting engagement with a roll spindle, a pivot shaft on the arm at an intermediate point in the length of the arm, a stand, means adjustably connecting said pivot shaft to said stand, and yielding means for fastening said arm in adjusted position on the stan 8. In a rolling mill, a, spindle carrier comprising an angularly adjustable pivoted carrier arm, said arm having one end in supporting engagement with a roll spindle, a stand on which said carrier arm is pivoted and yielding means for fastening the carrier arm to secure vsaid arm in spindle carrying position. Y

9. In a rolling mill, a spindle carrier comprising an angularly adjustable pivoted carrier arm, said arm having'one end-in supporting engagement with a roll spindle, a stand on which the carrier arm is pivoted,

- and adjustable means for fastening the carrier arm to secure said arm in splndle' carry-l ing position.

10. In a rolling mill, a spindle carrier comprising apivoted carrier arm, saidl arm having one end in supporting engagement with a roll spindle, `a pivot shaft on the arm,

a stand, means adjustably connecting the pivot shaft to VSaid stand, and means for.V

angularly adjusting said carrier arm.

In testimony whereof I halve'hereunto set myhand. j

i DAVID L. MILLER. 

